///@class LineEdit
///@Description This class is a custom LineEdit class that is inherited from a QTextEdit class.
/// 			This class has two purposes
///				1. Allows the completion of words, word by word with the use of a  QCompleter
///				2. Allows the emission of signals for certain special characters pressed
///				The code is referenced using the custom QCompleter example. The only functions reimplemented will be indicated
///				in comments
///				The code that is referenced using Qt Example has not been refactored to retain its original state as per created by Qt to allow
///				for easy reference to the example by future developers. The example can be found here: http://qt-project.org/doc/qt-4.8/tools-customcompleter.html
///				Only small componenents of this class has beeen modified

 /****************************************************************************
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 ** This file is part of the examples of the Qt Toolkit.
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#ifndef LINEEDIT_H
#define LINEEDIT_H

#include <QLineEdit>
#include <QCompleter>
#include <QTextEdit>

class LineEdit : public QTextEdit{
	Q_OBJECT

public:
	LineEdit(QWidget *parent = 0);
	~LineEdit();
    void setCompleter(QCompleter *c);
    QCompleter *completer() const;

protected:
    void keyPressEvent(QKeyEvent *e);
    void focusInEvent(QFocusEvent *e);

private slots:
    void insertCompletion(const QString &completion);


//Custom implemented signals to suit the needs of the project
//These signals corresponds to the following respectively:
//		1. Enter Key
//		2. Ctrl + Z
//	    3. Ctrl + Y
//		4. up button
//		5. down button
signals:
	void enterKeyPressed();
	void undoShortcutPressed();
	void redoShortcutPressed();
	void upKeyPressed();
	void downKeyPressed();

private:
    QString textUnderCursor() const;
	QSize sizeHint() const;
	void wheelEvent(QWheelEvent *e);
    QCompleter *c;

};

#endif // LINEEDIT_H
